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Finding the Third Proportional to 11,872 and 25,531

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Solution

The third proportional to 11,872 and 25,531 is: 54,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872 : 25,531 = 25,531 : x
  2. Step 2: Convert to fraction form
    11,872/25,531 = 25,531/x
  3. Step 3: Cross multiply
    11,872x = 25,531 × 25,531
  4. Step 4: Simplify right side
    11,872x = 651,831,961
  5. Step 5: Solve for x
    x = 651,831,961/11,872
  6. Step 6: Final answer
    x = 54,904.98

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.